POV-Ray : Newsgroups : povray.binaries.images : YACGSE (yet another cgsphere entry) : Re: YACGSE (yet another cgsphere entry) Server Time
2 Aug 2024 22:19:48 EDT (-0400)
  Re: YACGSE (yet another cgsphere entry)  
From: Alain
Date: 8 Jun 2007 20:08:12
Message: <4669ef6c@news.povray.org>
Bill Pragnell nous apporta ses lumieres en ce 2007/06/08 15:17:
> William Tracy <wtr### [at] calpolyedu> wrote:
>> Bill Pragnell wrote:
>>>> BTW, it would be cool to see this image with radiosity. Bring it up the
>>>> level of your 3D-rtc entry. ;-)
>>> Errr, this image already relies heavily on radiosity... without radiosity
>>> the shadowed areas are all black.
>> Wow, on the first take it sure looked like just ambient to me, but I'm
>> starting to see the radiosity effects on the inside of the sphere.
>>
>> Are you using any sort of sky sphere?
> 
> Yep, a big blue one! :-)
> 
> Actually, it's just a background { rgb <0.7,0.9,1> } but MegaPOV seems to
> use the background in radiosity calculations by default.
> 
> Bill
> 
Acording to my experience, POV-Ray normaly use the background, and any 
background feature like a sky_sphere, when evaluating radiosity.
Look at the attached image from a short code contest. The sky is background{rgb 
<.5,.7,1>}, the light  <8,4,2> and the ground rgb 1 using radiosity with default 
settings. You do see bluish areas.

-- 
Alain
-------------------------------------------------
I just got lost in thought. It wasn't familiar territory.


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